Update README.md

README.md

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-# variant_sampler
+## vSampler
+   VarNote is a fast, scalable and versatile tool for sampling matched sets of variants both as a web server and as a local program. Given input variants, vSampler can randomly draw control variants with eight optional matching properties and tissue/cell type-specific annotations by a novel data structure and searching algorithm. These matched random controls could be used to construct null distribution in enrichment/colocalization analysis to estimate the significance of statistical tests empirically or serve as negative training/test data for pathogenic/regulatory variant prediction models. vSampler runs significantly faster and supports both single-nucleotide polymorphisms (SNPs) and small insertions and deletions (Indels). It also provides comprehensive context-specific functional annotations as matching properties. For more information, please visit http://mulinlab.org/vsampler.
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+   - We welcome any discussion, suggestion and potential contribution of new functional prediction scores through github or contact Dr. Mulin Jun Li (mulinli{at}connect.hku.hk). 
+
+
+## Copyright
+Copyright (c) Mulinlab@Tianjin Medical University 2016-2020. All rights reserved.
+